Power-translating device.



APPLICATION FILED NOV. 2 8, 1902.

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PATE'IN'TED J NE 30,1903.

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No 732,647; PATENTED JUNE 30, 1903.

G. w. MARBLE.-

POWER TRANSLAT ING DEVIGB. APPLICATION FILED NOV. 1902.

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.UNITED STATES Patented June 30, 1903.v

PATENT OFFICE.

GEORGE .W. MARBLE, OF BUCHANAN, MICHIGAN, ASSIGNOR TO THE MARBLE-SWIFT AUTOMOBILE CO., A CORPORATION OF ARIZONA TERRITORY.

POWER-TRANSLATING DEVICE.

SPECIFICATION forming part of Letters Patent No. 732,647, dated June 30, 1903.

Application filed November 28, 1902. Serial No. 133,058. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE MARBLE, of Buchanan, in the county of Berrien and State of Michigan, have invented certain new and useful Improvements in Power-Translatin g Devices; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which-form part of this specification.

My invention relates to power-translating devices,and more particularly to power-transmitting devices adapted for use in conjunc-.

A further object is to provide compensatingconnections between the operating instrumentalities and the power-translating mechanism which will secure most efficient operation of said translating mechanism under all conditions of use.

A further object is to provide means for the independent control of the driving-Wheels. With a view to attaining these and other objects, which will become apparent to those skilled in the art from the following descripline 3 3 of Fig. 2.

tion, my invention consists in the features of construction and arrangement hereinafter more fully described, and specified in the claims.

In the drawings, wherein I have illustrated an embodiment of the various features of my friction-wheels and its operating devices,

taken on line 4 t of Fig.2. Fig. 5 is an enlarged detail of the lever employed inmoving the friction-wheel. Fig. 6 is a transverse section on line 6 6 of Fig. 1, illustrating the friction-brake structure employedin conjunction with power-translating devices. Figs. 7 and 8 are details illustrating the connections between the friction-wheel, operating rockshaft, and the opposite ends-0f the wheel carrying the shaft, taken, respectively, on lines 7 and 8 of Fig. 6. Fig. 9 isa detail plan view of one of the friction-wheel-shaft journalboxes. Fig. 10 is a detail side elevation of the foot-lever employed to operate the brake mechanism illustrated in Fig. 6,. said lever being shown'iu section in Fig. 1.

Throughout the drawings like numerals of reference indicate'like parts.

Referring now specificallyto the drawings, indicates the supporting-framework of a motor-vehicle, provided with the usual traction driving-wheels 21 21 and the front or steering wheels 22 22. The running-gear may be suitably connected with the frame 20 through suitable springs 23.-

. 24 indicates generally a steering device of any approved pattern.

25 is a conventional illustration of an englue or motor, which may be of any approved type and is shown as mounted upon the front portion of the frame over the steering-wheels. 25 indicates the power-shaft of said motor.

26 26 indicate transverse supporting framepiece arranged and adapted to support the power-translating devices and preferably disposed intermediate the motor and the driving traction-Wheels.

27 27 indicate longitudinal frame-pieces connecting the transverse framework 26 and adapted to afford support and bearing for the translating devices, as will be more fully described.

28 28 indicate friction-disks of relatively large diameter arranged in confronting relation within the rectangular frame formedby the frame-pieces 26 and 27 on opposite sides of the longitudinal axis of said rectangle. Each of said disks is provided with an exformally-arranged annular hub or flange 29 to receive a friction-brake, to be hereinafter more fully described. The disks 28 are mounted upon independent transverse shafts 30, extending outward therefrom and finding bearings upon the frame-pieces 27 27 and the side bars 20 of the frame 1 in suitable bearing-block, (indicated by 31 and 32, respectively.) At its outer end each of said shafts is provided with asprocket-wheel 33, adapted to be connected by a chain 34 (indicated in the drawings bydotted lines) with a sprocketwheel 35, associated with the corresponding traction driving-wheel 21.

While I have herein shown and described a chain-and-sprocket transmission arrangement between the translating devices and the driving-wheels, it is apparent that a direct drive might be employed, if desired, by placing the traction-wheels directly on the shafts 30.

36 indicates a longitudinally arranged shaft, preferably placed coaxially with the 1 frame 1 of the vehicle, having bearings atits opposite ends in bearing-boxes 37, which are carried by the transverse frame-pieces 26. As best illustrated in Figs. 7 and 9, each hearing-box 37 is provided with fiat lateral extensions 38 on each side thereof, slidably related to the frame-pieces 26. Each of said extensions is provided with a bolt-receiving slot 39, forming an arc whose center is located midway between the opposing boxes at opposite ends of the shaft. Bolts 40, projecting from the frame 26 through said slot, unite the framework and the bearing-boxes in slidable relation. The perforated lug. 41 extends vertically from the top of each of said bearing-blocks for a purpose to be hereinafter specified.

42 42 indicate two opposing friction-wheels slidably mounted upon the shaft 36, being rotatively connected threto by means of a feather 43, fitting in the spline-groove 44 in said shaft. The wheels 42 are slightly smaller in diameter than the distance between the opposing faces of the friction-disks 28 28. Each of said wheels is provided with a grooved collar 45. The adjacent extremities of the shafts 36 and 25 are united by a tumble-shaft 46, having a universal connection with each of said shafts to permit slight lateral motion of shaft 36, so that power may be transmitted direct from the motor to the shaft 36 for transmission to the driving-wheels.

I will now describe the mechanism employed to bring the driving-wheels 42 into effective driving contact with the frictiondisks 28.

47 47 indicate shaft-hangers projecting upward from the transverse frame-pieces 26 and disposed at one side thereof. 48 indicates a rock-shaftjourualed in hearings in said hangers and extending forward to a position suitably related to the drivers seat. (Notshown.) To the rear end of said shaft is fixedly secured a short depending crank-arm 49, whose free end is connected to a link 50, extending transversely through the perforations in the ing 41 of the rear driving-shaft bearing-blocks 37.

51 51 indicate two open compression-springs loose on the shaft, arranged on opposite sides of the lugs 41 and each finding bearings against a washer 53 upon a threaded portion of the link 50.

54 54 indicate check-nuts adapted to retain the washers 53 53 in adjusted positions, to regulate the tension of the springs 51.

54 indicates a sleeve arranged upon the shaft 48 adjacent to the hanger 47 and having projecting upwardly therefrom an arm 49 susceptible of a throw equal to that of the arm 49 and connected with the lug 41 of the opposing driving-shaft bearing-block 37 by a connection similar to that described in conjunction with the arm 49, as shown in Fig. 7. 55 indicates a hand-lever fixedly secured to said arm 49 and sleeve 54 and extending upward into a position to be conveniently operated. The sleeve 54 is disengageably connected with the rock-shaft 48 by any suitable means and illustrated bya removable pin 56.

57 indicates a foot-lever fixedly secured to the rock-shaft 48 and extending into a position suitable for operation by the driver of the machine. Said lever 57 is preferably inclined, its inclination being in such direction that if depressed it will tend to throw the friction-wheels 42 into such engagement with their friction-disks as to drive the vehicle forward.

The operation of this contact-controlling mechanism will be as follows: When the pin 56 is in place, rigidly connecting the sleeve 54 with the rock-shaft 48, movement of the hand-lever 55 to the left with reference to the driver will deflect the shaft 36 bodily, moving its forward end to the left and its rear end to the right. This action is accomplished by the sliding of the shaft-supporting bearing-boxes 37 upon theirsnpporting-frames 26. In this position, the direction of rotation of the motor-shaft being that indicated by the arrow in Fig. 1, both of the friction-wheels 42 will engage the respective opposite disks 48 to drive them in such relation as to rotate both of the driving-wheels 21 of the vehicle in a forward direction. If the lever 55 be moved to the right, the direction of rotation of the driven disk will be reversed and the vehicle will be caused to move in a backward direction. In practice, however, it may be convenient to remove the pin 56, thereby disengaging the sleeve 54', carrying the lever 55, from the rock-shaft 48. Now the foot-lever 57 alone controls the movement of the rear operating-link 50, and thereby the movement of the rear friction driving-wheel 42. The operation of the front driving-wheel 42 is controlled by the hand-lever 55. If now it is desired to drive one wheel only, as for shortturning purposes, either of the traction driving-wheels 22 may be caused to rotate alone by the operation of the appropriate lever 55 or 57. Both friction-wheels 42 may be setin operative position by the simultaneous movement of the levers 55 and 57 in the same direction.

The spring connection between the links 50 and their respective shaft bearing-boxes 337 permit an extremely delicate yielding ad justment of the friction-wheels 42 to their respective friction-disks. Furthermore, such a;

' greater than the radius of the wheel 42. 60

indicate sliding sleeves mon nted u pon the rodl 59 on opposite sides of the bearing-pin 60. A stud 62, projecting upward from each of :said sleeves 61, is bifurcated at its upper end to form a yoke 63, embracing the collar.

45 of the corresponding friction-wheel 42,

each of said yokes carrying pins 64, engaging the grooves in said collars. shaped lever pivoted at its center upon the bearing 60. 66 indicates links pivoted at one end in the extremities of the lever and at their other ends connected with the corresponding studs 62 of the respective sliding sleeves 61. otally connected to a lug 68, depending from one of the arms of the curved lever 65 and extending forward into pivotal engagement with the lower end of the lever 69, suitably pivoted and extending into convenient position with relation to the drivers seat of the vehicle. The operation of this mechanism will be apparent. When the --lever 69 is moved, the connecting-rod 67 is correspondingly shifted on a longitudinal line, oscillating the lever 65 and through the link connections 66 sliding the sleeves 61 in opposite directions along the rod 59, thus simultaneously increasing or decreasing the distance of the wheels 42, connected to such sleeves, as described, from the axis of rotation of the two friction-disks 28. 1

70 70 indicate a spring-strap surrounding the annular hub 29, which is fixed to or is a part of the disk 28. Said strap is at a suitable point secured to a lug 71, projecting from one of the frame-pieces 27. The divided ends of the band 70 are united by a strap 72, projecting from one of the divided ends, and a bell-crank lever 73, carried by the opposite end and pivoted to said strap. The free extremity of the bell-crank is connected to alink 74. As illustrated in Fig. 1, both of the links 74 are connected to the brake-disks on opposite sides of the friction-disks and are connected to opposite ends of a compen- 59 indicates a rod 65 is an S- 67 indicates an operating-rod piv-- sating bar '75, which in turn is connected at its center to a strap 76, extending forward into pivotal connection with the lower extremity of a foot-lever 77.

, While I have herein described my invention in some detail for the purpose of full disclosure, it will be apparent to those skilled in the art that numerous changes maybe made in the specific embodiment thereof without departing from the spirit and scope of my invention.

Having described myinvention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. In apower-translating device the combination of, a friction-disk, two friction-wheels arranged to make peripheral contact with the face of said disk on opposite sides of the axis thereof, a shaft divided into two sections through a plane intersecting its axis, upon the movable section of which said wheels are nation of a laterally-fixedfriction-disk, two

friction-wheels arranged to make peripheral contact with the face of said disk on opposite sides of the axis thereof, a means for simultaneously moving said wheels laterally in opposite directions for effecting yielding driving contact of one of saidwheels with said disk and simultaneously removing the other wheel from contact therewith, and an independent yielding connection between said means and each of said wheels, and a means for adjusting said connection. 7

3. In a power-translating device the combination of two confronting friction-disks, two

friction-wheels, adapted to make peripheral contact with the face of either of said friction-disks on opposite sides of the axis thereof, a shaft divided into two sections through a plane intersecting its axis, upon the laterally-r'novable section of which said wheels are mounted, a flexible connection joining said sections, laterally-movable shaft-supporting bearings for supporting each end of the movable section of said shaft, a means for moving said hearings in opposite direction to effect contact of each of said wheels with the respective friction-disks, and a yielding selfadjusting connection between said means and said bearings, substantially as set forth.

4. In a power-translating device the combi-' nation with two confronting friction-disks, 'of two friction-wheels arranged to make peripheral contact with the face of either of said friction-disks, on opposite sides of the axis thereof, and a means forindependently mov- IIO ing either of said wheels into contact with either of said disks Without effecting contact of the other friction-wheel with either of said disks.

5. In a powentranslating device the combination of two confronting disks, a frictionbrake surface on each of said disks, a loose brake member arranged to be applied to each of said surfaces, an equalizing-bar, a con nection extending from each end of said bar to each of the loose brake members, a connection from the center of said bar to a means for applying the brakes, and a means for applying the brakes.

6. In a power-translating device the combination of two confronting friction-disks 28, friction-Wheels 42 arranged to make peripheral contact with said disks, a shaft 36 upon which said wheels are carried and to which they are rotatively connected, bearings 37 and 38 carrying said shaft arranged to be laterally moved, shaft 48 arranged to be oscillated, crank-arms 49 and 49' fixed to said shaft, links 50 connecting said crank-arms to boxes 37 and 38 respectively, and a means for oscillating shaft 48, whereby friction-wheels 42 are moved in opposite directions.

7. In a power-translating device the combination with the friction disk and wheels of a shaft upon which the latter are carried, bearings for said shaft, adapted to be laterally moved, guides for said bearings, and a means for moving either of said bearings independently.

8. In a power-translating device the combination of a rectangular frame supporting structure consisting of the pieces 26 26 and 27 27, supports 20 20 parallel with the pieces 27, shafts 30 30 coaxially arranged and supported on the pieces 20 and 27 respectively, friction-disks mounted upon the ends of said shafts, a driving-shaft divided into two sec tions through a plane intersecting the axis thereof, a flexible connection joining said sections, one of said sections extending between said disks, friction-wheels adapted to make peripheral contact with said disks carried by the latter section, movable bearings for supporting the latter section and a means for simultaneously moving the ends of said section in opposite direction to effect peripheral driving contact of either of said wheels with either of said disks.

9. In a power-translating device the combination of, the frame 20, an interiorly-arranged rectangular frame consisting of lateral pieces 26 26 joining the sides of the frame 20 and intermediate transverse pieces 27 27 joining the pieces 26 26, two coaxially arranged shafts, adapted to be driven, supported upon the respective pieces 20 and 27, friction-disks upon the inwardly-projecting ends of each of said driven shafts, asource of power mounted upon the frame 20, a driving-shaft extending from said source of power between and beyond said disks, said shaft divided into two sections through a plane intersecting its axis, a flexible connection joining said shafts, movable bearing supports carried by the pieces 26 for the movable section of said shaft, friction driving-wheels mounted on said section and a means for deflecting the ends of said section in opposite directions for effecting contact of said friction-wheels with either Y of said disks.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

GEORGE W. MARBLE. Witnesses:

HARRY B. HOWE, CHARLES F. PEARS. 

